This is Cell 1 of the five cells in the Williss Position Finding Station. It is the highest up the rock and lies just to the north of the entrance to the Great Siege Tunnels.
The position can still be identified but was heavily concreted over in WW2 and has now been converted to a viewing platform. The concrete entrance can still be seen, all WW2 work.

This is Cell 1 of the five cells in the Williss Position Finding Station. It is the highest up the rock and lies just to the north of the entrance to the Great Siege Tunnels.
The position can still be identified but was heavily concreted over in WW2 and has now been converted to a viewing platform. The concrete entrance can still be seen, all WW2 work.